Evoplosoma forcipifera, FISHER, 1906

Mah, Christopher, Nizinski, Martha & Lundsten, Lonny, 2010, Phylogenetic revision of the Hippasterinae (Goniasteridae; Asteroidea): systematics of deep sea corallivores, including one new genus and three new species, Zoological Journal of the Linnean Society 160 (2), pp. 266-301 : 280-281

EVOPLOSOMA FORCIPIFERA FISHER, 1906

Fisher, 1906: 1065; Clark, 1993: 253

Occurrence: Hawaiian Islands, east of Kauai Island, 48°S 15′W. 929–1247 m (682–508 fms).

Comments: The specimen image of E. forcipifera from Trego (2008) lacks abactinal spination and shows quadrate marginals abutting along the midradius, a character absent from Evoplosoma , indicating that the specimen described in this paper is misidentified, invalidating Trego’s (2008) range extension for this species. The holotype for this species is missing from the USNM collections ( Ahearn, 1995).

EVOPLOSOMA SCORPIO DOWNEY, 1981

FIGURE 6A–E

Downey, 1981: 561; Gage et al., 1983: 280; Clark & Downey, 1992: 242; Clark, 1993: 253.

Occurrence: South-west Rockall Trough to northeastern European Basin (48.5°N, 10°W) extended herein to off Delaware 38°45′N, 72°40′W. 1600– 2105 m .

Material examined: USNM E50539 , off Delaware , North Atlantic Ocean, 38°45′N, 72°40′W, 2105 m, coll. Lamont-Doherty Geological Observatory , DSRV Alvin , 15.vii.1981 (1 dry spec. R = 5.5, r = 1.8) ; USNM E23623 , off Ireland, North Atlantic , 55°12′N, 15°50′W, 1900 m, coll. J. Gage , R/V Challenger (1 dry spec. R = 8.2, r = 2.4) .

Figures

Figure 6. Evoplosoma scorpio USNM E23623. A, abactinal surface of disk and arms; B, actinal surface proximal to mouth; C, furrow spines and pedicellariae. USNM E50539; D, actinal intermediate surface region, showing adambulacral and furrow spination; E, adambulacral and furrow spination along actinal arm surface. Scale bars: A = 3 mm; B–E = 2 mm.